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Finding the Fourth Proportional to 112,102.61, 168,011.71 and 110,916.14

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Solution

The fourth proportional to 112,102.61, 168,011.71 and 110,916.14 is: 166,233.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,102.61 : 168,011.71 = 110,916.14 : x
  2. Step 2: Convert to fraction form
    112,102.61/168,011.71 = 110,916.14/x
  3. Step 3: Cross multiply
    112,102.61x = 168,011.71 × 110,916.14
  4. Step 4: Simplify right side
    112,102.61x = 18,635,209,230.65
  5. Step 5: Solve for x
    x = 18,635,209,230.65/112,102.61
  6. Step 6: Final answer
    x = 166,233.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.